10 PCS Aquarium Air Pump Check Valves Plastic One Way Check Valve -BlackWhite keep fish/ roots healthy and

keep fish/ roots healthy and promote plant growth

According to your needs

sparkling appearance

is every pet owners essential product

5cmS-37 x 1

10 PCS Aquarium Air Pump Check Valves Plastic One Way Check Valve -BlackWhite keep fish/ roots healthy andSize: 2. 1?0. 6inchColor: BlackFeatures: The one way check valves are for common aquarium air pumps. Please DO NOT use them with CO2 system. Protect you air pump by preventing aquarium water from back siphoning during a power outage. Made of quality plastic, durable and sturdy, not easy to break, ensure long time of usage. The valves are detachable, you can unscrew to open it so as to clean and repair them easily. 10 pieces air pump check valves,